Avatars are separate, and name and notes are required fields in any character sheet. If you remove them, it won't save. This means you can have name anywhere in the sheet (doesn't have to be right at the beginning), as long as it exists.
As for the "post as NPC", do we mean as a NPC that doesn't have to have a char sheet? In the past, I considered NPC sheets, simple, low field count sheets that had basic info and an avatar. That's something someone could design (stat fields, maybe a skill field, notes) + avatars. As a note, I've upped the character avatar count to 5. Still figuring out how to do the posting part, but yah.